North American beaver · Castor canadensis

Beaver Sightings in Missouri

299 documented observations · most recent 5/13/2026

Missouri has 299 beaver sightings on record, with the most recent logged on May 13, 2026 — a report from Ladue describing a sycamore sapling that had been felled near Deer Creek, its fresh green leaves still intact as it caught on rocks in the water. In the days surrounding that observation, several other sightings came in, including a beaver spotted briefly before moving on and at least one report where the observer was unsure whether the animal was a beaver or a groundhog and asked the community for help with identification. That kind of honest uncertainty is a normal part of community-contributed wildlife data, and it's worth keeping in mind when reading through the record. The sighting total here is modest, reflecting either lower observer density, quieter habitat, or simply the challenge of spotting a largely crepuscular and nocturnal animal.

Beavers are considered a keystone species in North American freshwater ecosystems, meaning their presence tends to have outsized effects on the habitat around them. Their dams slow water flow, raise the local water table, and create wetland conditions that support a wide range of other species. This capacity to hold water on the landscape also draws interest in the context of drought resilience and climate adaptation, since beaver-influenced areas can retain moisture through dry periods that would otherwise leave streams reduced or intermittent. None of that is unique to Missouri — it reflects the general biology of the species wherever it lives.

If you have spotted a beaver or fresh sign like chewed stumps, drag marks, or a dam, adding an observation through a linked platform helps build a more complete picture of where the species is active across the state.

Recent observations

Get monthly updates for Missouri

One email a month. Notable sightings, dam activity, and ecological notes.